CN202271202U - High precision positioning lathe clamp - Google Patents

High precision positioning lathe clamp Download PDF

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Publication number
CN202271202U
CN202271202U CN2011202343756U CN201120234375U CN202271202U CN 202271202 U CN202271202 U CN 202271202U CN 2011202343756 U CN2011202343756 U CN 2011202343756U CN 201120234375 U CN201120234375 U CN 201120234375U CN 202271202 U CN202271202 U CN 202271202U
Authority
CN
China
Prior art keywords
clamp
workpiece
pressing plate
abutment sleeve
bolt
Prior art date
Application number
CN2011202343756U
Other languages
Chinese (zh)
Inventor
温俊凯
王建春
郑建军
吕桂梅
熊艳
王永利
高永红
庞廷闽
Original Assignee
河北宣化工程机械股份有限公司
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Application filed by 河北宣化工程机械股份有限公司 filed Critical 河北宣化工程机械股份有限公司
Priority to CN2011202343756U priority Critical patent/CN202271202U/en
Application granted granted Critical
Publication of CN202271202U publication Critical patent/CN202271202U/en

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Abstract

The utility model provides a high precision positioning lathe clamp, which belongs to the technical field of metal machining equipment and is used for the fast and high precision positioning of a sleeve-like workpiece. According to the technical scheme of the utility model, the high precision positioning lathe clamp comprises a clamp body, a positioning sleeve and a workpiece hold-down device. The clamp body is in a disc shape and the positioning sleeve is sleeved on the outer circumference of the central cylindrical projection of the clamp body. The outer circumference of the positioning sleeve is matched with the inner circumference of a workpiece to be machined. The outer circumferential wall of the positioning sleeve is a deformable thin wall. The clamp body is provided with a pressure guiding hole communicated with the core space of the positioning sleeve. The liquid plastic is filled inside the positioning sleeve and the pressure guiding hole. The outer end of the pressure guiding hole is provided with a pressurization bolt. The surface of the clamp body is provided with the workpiece hold-down device. Due to the adoption of the high precision positioning lathe clamp, the inner circumference of a workpiece is supported by the positioning sleeve. Based on the incompressibility of the liquid plastic, the liquid plastic transmits the pressure to the positioning sleeve. Therefore, the thin wall of the positioning sleeve generates elastic deformation so as to center and tightly support a workpiece. The high precision positioning lathe clamp adopting the above structure has the advantages of high centering accuracy, simple operation, good pressure consistency and high working efficiency.

Description

A kind of hi-Fix turning attachment
Technical field
The utility model relates to a kind of turning attachment that nested structure class workpiece is processed, and belongs to metal machining apparatus technical field.
Background technology
In numerous engineering goods, the various nested structure base parts that are being widely used, these nested structure base parts play a different role in different engineering goods, and therefore the requirement of machining accuracy to them also has very big difference.Like the adapter sleeve that uses on the flatrack crawler dozer is the bridge of bull-dozer power drive system, is used to connect transmission system and walking mechanism, during bull-dozer work; Bearing bigger moment of torsion on the adapter sleeve; Therefore, it belongs to vital part on bull-dozer, and its required precision is than higher.
The design of this adapter sleeve, the φ 215M7 dead eye that requires the adapter sleeve small end is not more than φ 0.10 mm with respect to the axiality of big end φ 260M7 dead eye (benchmark B).The technological requirement of processing is that finish turning small end φ 215M7 hole and cylindrical and end face reach drawing requirement with φ 260M7 hole (benchmark B) and A face location.According to this design and processes requirement, to be exactly φ 215M7 dead eye be difficult to guarantee with respect to axiality φ 0.10 mm of benchmark B the machined difficult point, adds measurement size in man-hour 194 (0/-0.2) difficulty.
In actual production, find, if adopt general apotting spindle location, empirical evidence, the minimum clearance Xmin of φ 260M7 hole and apotting spindle should be not less than 0.04mm, otherwise workpiece loading and unloading is just very difficult, does not meet requirements of mass production.And apotting spindle itself also has foozle, in addition, also has machine tool error, frock foozle, frock to be connected sum of errors human error etc. with lathe, and all errors finally all will be reflected on the workpiece.This shows that adopt conventional apotting spindle location, finish turning adapter sleeve little-end bearing hole φ 215M7 is difficult to guarantee what its axiality required.Therefore exist crudy to be difficult to stablize in the present production, workpiece loading and unloading is very difficult simultaneously, does not meet requirements of mass production.
The utility model content
The utility model technical problem to be solved provides and a kind ofly can require that high, as to be difficult to reach with conventional locate mode positioning accuracy request sleeve workpiece carries out fast, the turning attachment of hi-Fix to axiality.
The technical scheme that solves the problems of the technologies described above is:
A kind of hi-Fix turning attachment, it is made up of clamp body, abutment sleeve and workpiece pressuring clamping device, and clamp body is discoid; Its circumference and lathe dog are complementary, and there is cylindrical protrusions upwards at the center of clamp body, and abutment sleeve is sleeved on the excircle of cylindrical protrusions; The excircle of abutment sleeve and the inner periphery of workpiece to be machined are complementary; The outer circle wall of abutment sleeve is the deformable thin-walled, and there is the intracavity inter-connection of pressure guide hole and abutment sleeve the disk side of clamp body, in abutment sleeve and pressure guide hole, is perfused with liquid plastics; There is pressurization bolt outer end at pressure guide hole, and the disk upper surface of the clamp body outside abutment sleeve has workpiece pressuring clamping device.
Above-mentioned hi-Fix turning attachment, described workpiece pressuring clamping device is made up of pressing plate, workpiece support piece, pressing plate support bar, hold-down bolt, and workpiece support piece, pressing plate support bar and hold-down bolt are respectively a plurality of; They are uniformly distributed with along the disc surfaces of clamp body; Their lower end is fixed in the disk of clamp body through screw respectively, and the pressing plate two ends upper surface with workpiece support piece, pressing plate support bar respectively are corresponding, and the pressing plate middle part has elongated slot; Elongated slot is passed in the upper end of hold-down bolt; Clamp nut is spun on the hold-down bolt top, on hold-down bolt, is with spring, and spring withstands between the upper surface of pressing plate lower surface and clamp body.
Above-mentioned hi-Fix turning attachment; It also has floating disc; Floating disc is positioned at the cylindrical protrusions upper end of clamp body, and the circumference of floating disc and the excircle of abutment sleeve are complementary, and has spring to support between the upper surface of the lower surface of floating disc and the cylindrical protrusions of clamp body.
The usefulness of the utility model is:
The centering and clamping mechanism of clamp body is by the inner periphery of thin-walled abutment sleeve supporting workpiece; be perfused with liquid plastics in the thin-walled abutment sleeve, utilizes the Incoercibility of liquid plastics, and pressure is passed to the thin-walled abutment sleeve equably; make abutment sleeve produce strain, with the workpiece stretching of feeling relieved.This structure have the centering precision height, simple to operate, speed is fast, the advantage of loading and unloading that pressure consistency is good, be convenient to workpiece and clamping, high efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the schematic appearance of the utility model.
Mark is following among the figure: pressing plate 1, pressing plate support bar 2, clamp body 3, spring 4, hold-down bolt 5, workpiece support piece 6, spring 7, screw 8, plug screw 9, screw 10, floating disc 11, abutment sleeve 12, traveller 13, pressurization bolt 14, pressure guide hole 15, workpiece 16, packing ring 17,18,19, liquid plastics 20, screw 21, clamp nut 22, soket head cap screw 23.
The specific embodiment
The utility model as positioning reference, and utilizes the Incoercibility clamping work pieces of liquid plastics with finished hole on the workpiece, has advantages such as positioning accuracy height, speed is fast, pressure consistency is good.
Show among the figure that the utility model is made up of clamp body 3, abutment sleeve 12 and workpiece pressuring clamping device.
Show among the figure that clamp body 3 is discoid, its circumference and lathe dog are complementary, and can be clamped in the lathe dog.
Show among the figure that abutment sleeve 12 is sleeved on the protruding excircle of the central cylindrical of clamp body 3.The inner periphery of the excircle of abutment sleeve 12 and workpiece to be machined 16 is complementary.The outer circle wall of abutment sleeve 12 is the deformable thin-walled, and there is the intracavity inter-connection of pressure guide hole 15 and abutment sleeve 12 the disk side of clamp body 3, in abutment sleeve 12 and pressure guide hole 15, is perfused with liquid plastics 20, in the outer end of pressure guide hole 15 pressurization bolt 14 is arranged.
Show workpiece pressuring clamping device is arranged among the figure at the disk upper surface of clamp body 3.Workpiece pressuring clamping device is made up of pressing plate 1, workpiece support piece 6, pressing plate support bar 2, hold-down bolt 5.Pressing plate 1, workpiece support piece 6, pressing plate support bar 2 and hold-down bolt 5 are respectively a plurality of, and they are uniformly distributed with along the disc surfaces of clamp body 3, and the embodiment that shows among the figure is respectively 3, are positioned at the outside of abutment sleeve 12, are equilateral triangle and distribute.The lower end of workpiece support piece 6, pressing plate support bar 2, hold-down bolt 5 has bolt to be fixed in the disk of clamp body 3 through screw respectively.
The two ends of pressing plate 1 lay respectively at the upper surface of workpiece support piece 6, pressing plate support bar 2, and the compacted part of workpiece 16 is placed on above the workpiece support piece 6, and an end of pressing plate 1 is pressed on the workpiece 16, jointly workpiece 16 are clamped with workpiece support piece 6.Pressing plate 2 middle parts have elongated slot, and elongated slot is passed in the upper end of hold-down bolt 5, and clamp nut 22 is spun on hold-down bolt 5 tops, and pressing plate 1 is pressed down, and make pressing plate 1 two ends workpiece pressing 16 and pressing plate support bar 2.On hold-down bolt 5, be with spring 4, spring 4 withstands between the upper surface of pressing plate 1 lower surface and clamp body 3.
Show to also have floating disc 11 in the cylindrical protrusions upper end of clamp body 3 among the figure, the circumference of floating disc 11 is identical with the excircle of abutment sleeve 12.There is circular groove at upper surface center in the cylindrical protrusions of clamp body 3, and floating disc 11 covers on the groove, has spring 7 to support between the lower surface of floating disc 11 and the groove floor.Floating disc 11 guarantees the measurement of depth dimensions as measuring basis.
The embodiment of an embodiment of the utility model is following:
Three workpiece support pieces 6 require grinding simultaneously, promptly must wait high.
The wall thickness 2mm of abutment sleeve 12; And require wall thickness deflection to be not more than 0.06mm, cylindrical (positioning cylindrical surface) is of a size of Φ 260 and (0.10/-0.15), cooperates with the axle of clamp body 3 and select Φ 216 (H7/t6) for use; Be interference fit; During use, at first centering sleeve cylindrical Φ 260 (0.10/-0.15), makes its circular runout with respect to the vertical lathe pivot be not more than 0.01m.
The upper surface of floating disc 11 is measuring basis of depth dimensions 194 (0/-0.2), and three springs of its lower end mat 7 float and support, and guarantees that the floating disc upper surface fits with the C face in workpiece adapter sleeve φ 260M7 hole all the time, so that guarantee the accuracy of measurement result.
When the workpiece adapter sleeve anchor clamps of packing into; And with behind φ 260M7 hole and the A face location; Screw in pressurization bolt 14, to the liquid plastics pressurization, thin-walled abutment sleeve 12 produces strain; Make thin-walled abutment sleeve 12 and workpiece 16 locating holes form interference fit (being location, no gap), workpiece 16 centering are clamped.

Claims (3)

1. hi-Fix turning attachment; It is characterized in that: it is made up of clamp body (3), abutment sleeve (12) and workpiece pressuring clamping device, and clamp body (3) is discoid, and its circumference and lathe dog are complementary; There is cylindrical protrusions upwards at the center of clamp body (3); Abutment sleeve (12) is sleeved on the excircle of cylindrical protrusions, and the excircle of abutment sleeve (12) and the inner periphery of workpiece to be machined are complementary, and the outer circle wall of abutment sleeve (12) is the deformable thin-walled; There is the intracavity inter-connection of pressure guide hole (15) and abutment sleeve (12) the disk side of clamp body (3); In abutment sleeve (12) and pressure guide hole (15), be perfused with liquid plastics (20), in the outer end of pressure guide hole (15) pressurization bolt (14) arranged, the disk upper surface of the clamp body (3) outside abutment sleeve (12) has workpiece pressuring clamping device.
2. hi-Fix turning attachment according to claim 1; It is characterized in that: described workpiece pressuring clamping device is made up of pressing plate (1), workpiece support piece (6), pressing plate support bar (2), hold-down bolt (5); Workpiece support piece (6), pressing plate support bar (2) and hold-down bolt (5) are respectively a plurality of, and they are uniformly distributed with along the disc surfaces of clamp body (3), and their lower end is fixed in the disk of clamp body (3) through screw respectively; Pressing plate (1) the two ends upper surface with workpiece support piece (6), pressing plate support bar (2) respectively are corresponding; Pressing plate (1) middle part has elongated slot, and elongated slot is passed in the upper end of hold-down bolt (5), and clamp nut (22) is spun on hold-down bolt (5) top; On hold-down bolt (5), be with spring (4), spring (4) withstands between the upper surface of pressing plate (1) lower surface and clamp body (3).
3. hi-Fix turning attachment according to claim 2; It is characterized in that: it also has floating disc (11); Floating disc (11) is positioned at the cylindrical protrusions upper end of clamp body (3); The excircle of the circumference of floating disc (11) and abutment sleeve (12) is complementary, and has spring (7) to support between the upper surface of the cylindrical protrusions of the lower surface of floating disc (11) and clamp body (3).
CN2011202343756U 2011-07-05 2011-07-05 High precision positioning lathe clamp CN202271202U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202343756U CN202271202U (en) 2011-07-05 2011-07-05 High precision positioning lathe clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202343756U CN202271202U (en) 2011-07-05 2011-07-05 High precision positioning lathe clamp

Publications (1)

Publication Number Publication Date
CN202271202U true CN202271202U (en) 2012-06-13

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102990412A (en) * 2012-11-30 2013-03-27 苏州市意可机电有限公司 Machining tool for fixing fixture block
CN103433780A (en) * 2013-08-22 2013-12-11 芜湖奕辰模具科技有限公司 Double-fixing fixture with measurable pressure
CN103949903A (en) * 2014-04-25 2014-07-30 西安航空动力股份有限公司 Profile-followed positioning method for annular thin-wall part
CN104001873A (en) * 2014-05-30 2014-08-27 河南省四达仙龙实业有限公司 Fixing and clamping device for sand box
CN104384999A (en) * 2014-12-01 2015-03-04 安徽机电职业技术学院 Right-angle gear reduction gearbox body end face milling fixture and using method thereof
CN104440257A (en) * 2014-12-01 2015-03-25 安徽机电职业技术学院 Right-angle gear reducer clamp and application method thereof
CN104708456A (en) * 2014-08-10 2015-06-17 安徽工程大学 Special clamp for machining upper end face of base of robot
CN104802078A (en) * 2015-05-04 2015-07-29 中国南方航空工业(集团)有限公司 Indexing mill planar tool
CN104959860A (en) * 2015-08-03 2015-10-07 陕西柴油机重工有限公司 Clutch small-size orthodrome part machining method and device
CN105690145A (en) * 2016-03-28 2016-06-22 苏州市合叶精密机械有限公司 Drilling jigs for elliptical cam
CN109352361A (en) * 2018-11-20 2019-02-19 中国航发沈阳黎明航空发动机有限责任公司 A kind of cylindrical member Vehicle Processing tooling and application method of the metal plate thin-walled with tailstock
CN109454487A (en) * 2018-10-31 2019-03-12 南京新尼亚文汽车零部件有限公司 A kind of platen lid processing post-tensioning tight-holding type vehicle clamper
CN110153782A (en) * 2019-06-03 2019-08-23 中国航发航空科技股份有限公司 A kind of vibration absorber for the processing of aero-engine Thin-Wall Outer Casing part inner mold
CN110450065A (en) * 2019-07-25 2019-11-15 上海拓璞数控科技股份有限公司 The simple tooling fixture and its method for tooling of cylinder section part

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102990412A (en) * 2012-11-30 2013-03-27 苏州市意可机电有限公司 Machining tool for fixing fixture block
CN103433780A (en) * 2013-08-22 2013-12-11 芜湖奕辰模具科技有限公司 Double-fixing fixture with measurable pressure
CN103949903A (en) * 2014-04-25 2014-07-30 西安航空动力股份有限公司 Profile-followed positioning method for annular thin-wall part
CN104001873A (en) * 2014-05-30 2014-08-27 河南省四达仙龙实业有限公司 Fixing and clamping device for sand box
CN104708456A (en) * 2014-08-10 2015-06-17 安徽工程大学 Special clamp for machining upper end face of base of robot
CN104384999A (en) * 2014-12-01 2015-03-04 安徽机电职业技术学院 Right-angle gear reduction gearbox body end face milling fixture and using method thereof
CN104440257A (en) * 2014-12-01 2015-03-25 安徽机电职业技术学院 Right-angle gear reducer clamp and application method thereof
CN104802078B (en) * 2015-05-04 2017-10-17 中国南方航空工业(集团)有限公司 Index flat surface grinding frock
CN104802078A (en) * 2015-05-04 2015-07-29 中国南方航空工业(集团)有限公司 Indexing mill planar tool
CN104959860A (en) * 2015-08-03 2015-10-07 陕西柴油机重工有限公司 Clutch small-size orthodrome part machining method and device
CN105690145A (en) * 2016-03-28 2016-06-22 苏州市合叶精密机械有限公司 Drilling jigs for elliptical cam
CN109454487A (en) * 2018-10-31 2019-03-12 南京新尼亚文汽车零部件有限公司 A kind of platen lid processing post-tensioning tight-holding type vehicle clamper
CN109352361A (en) * 2018-11-20 2019-02-19 中国航发沈阳黎明航空发动机有限责任公司 A kind of cylindrical member Vehicle Processing tooling and application method of the metal plate thin-walled with tailstock
CN110153782A (en) * 2019-06-03 2019-08-23 中国航发航空科技股份有限公司 A kind of vibration absorber for the processing of aero-engine Thin-Wall Outer Casing part inner mold
CN110450065A (en) * 2019-07-25 2019-11-15 上海拓璞数控科技股份有限公司 The simple tooling fixture and its method for tooling of cylinder section part

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120613

Termination date: 20160705